MPG Products to Increase Mileage

Monark Diesel Fuel Injector Nozzles-Best Engine Performance Upgrade

Of all the upgrades for diesel engines that we offer on this site, I believe changing over to Monark injector nozzles will give you more performance improvements for the money that any other single product. From our own diesels to the glowing reports we hear from our customers - you may have a hard time believing just how try this claim is until you experience it first hand! And Monark nozzles are probably the last of a breed. Yes, they are still manufactured in Germany...

5 Cyl 617 Diesel Fuel Injector DIY Rebuild Kit Special

For 300D 300CD 300TD 300SD - Save $$

Item: DSL-COM617DIRK
$309.95

If you have been reluctant to replace your worn and inefficient Bosch fuel injector nozzles because the job is too difficult or too costly then think again! For approximately the same cost as rebuilt Bosch fuel injectors you can purchase this kit to rebuild them yourself in your garage and get better performance to boot! Works on all 617 engines 300D, 300CD, 300TD and 300SD from 1975 to 1985.

Diesel Fuel Injector Balance Pressure Tester - Free Manual Included

For all MBZ diesel engines 1950 to 1993

Item: TUL-COMDIPT
$179.50

You are looking at the worlds first production diesel mechanical fuel injector bench tester available in the U.S. for under $200. These are built at the Mercedessource shop to control quality and production demands. This bench mount pop tester will allow you to economically test the spray pattern and fine tune (balance) your fuel injectors at home. With the injector fitting included it will work on all Mercedes diesels from the early 1960s up to 1993. This includes chassis 110, 115, 116, 123, 126, 201 and 124 and models 200D 220D 240D 300D 300CD 300TD 190D 300SD 300SDL 350SD.

Early 126 124 6 cylinder Turbo Diesel Pencil Glow Plugs - Set of (6) with Installation Manual

126 chassis 300SDL 1986 and 1987 and 124 chassis 300D 300TD for model year 1987 only.

Item: DSL-6GPWM039
$89.95

Glow plugs do not last forever. I have found they generally need to be replaced about every 2 years for peak performance. If your diesel starts hard when cold, or starts but runs rough for 30 to 60 seconds before smoothing out, or the glow dash light flashes right after startup, then it may be time to replace the glow plugs. They should be replaced in sets unless you have the odd failure of just one fairly new plug.

Fits the following: 126 chassis 300SDL 1986 and 1987 and 124 chassis 300D 300TD for model year 1987 only. This kit includes 6 new Bosch glow plugs and Kent's Glow plug removal and replacement manual. This can be a tricky job but with Kent's manual you will have them replaced in no time!

Early 300D 5 Cylinder Diesel Bosch Fast Glow plug Conversion Kit

Fits 1975 to 1979 300D 300CD 300TD

Item: DSL-5BFGP035
$98.50

If you own an early 5 cylinder non-turbo diesel then this is a must have diesel engine kit! This glow plug upgrade will do three things that will put a smile on your face: 1. Your engine will start faster and cold idle smoother. 2. Your glow plugs will last longer. 3. If you should burn out one or two glow plugs your engine (if healthy) will still start! If you have ever been stranded with bad glow plugs before you know the frustration. This kit will allow you to throw away your old series style glow plugs forever and replace them with the more efficient pencil style parallel glow plugs used in the newer diesels. FITS THE FOLLOWING: 115 and 123 chassis 5 cylinder non-turbo 300D Diesel engines from 1975 to 1979.

The complete kit includes the following:

Early 220D 240D 4 Cylinder Diesel Bosch Fast Glow plug Conversion Kit

For 220D 240D 1969 to 1979

Item: DSL-4BFGP035
$82.95

If you own an early 4 cylinder diesel then this is a must have diesel engine kit! This glow plug upgrade will do three things that will put a smile on your face: 1. Your engine will start faster and cold idle smoother. 2. Your glow plugs will last longer. 3. If you should burn out one or two glow plugs your engine (if healthy) will still start! 

Late 5 Cylinder 617 Bosch Pencil Glow Plugs with Carbon Reamer - Package Deal!

For 1980 to 1985 300D 300CD 300TD and 1978 to 1985 300SD

Item: DSL-5BWR039
$99.95

Application: Fits all 5 cylinder 116 and 126 Chassis diesel engines 300SD from 1978 to 1985 and all 123 Chassis 300D, 300CD and 300TD from 1980 to 1985 with pencil glow plugs. Excellent quality. Bosch Duraterm pencil glow plug.

Cleaning out your glow plug holes from excess carbon (coke) can increase fuel economy and will extend the life of your glow plugs. This important regular maintenance procedure is commonly neglected and will lead to rough starts, smoke at startup, decreased fuel economy, and engine shake.

Late 4 Cylinder 616 Bosch Pencil Glow Plugs with Carbon Reamer - PACKAGE DEAL

Fits 1980 to 1983 123 Chassis 240D only

Item: DSL-4BGWR039
$86.50

Application: Fits all 4 cylinder 123 chassis 240D diesel engines from 1980 to 1983 with pencil glow plugs. Excellent quality. They are Bosch Duraterm brand glow plugs.

Cleaning out your glow plug holes from excess carbon (coke) can increase fuel economy and will extend the life of your glow plugs. This important regular maintenance procedure is commonly neglected and will lead to rough starts, smoke at startup, decreased fuel economy, and engine shake.

Kit Includes 4 pencil glow plugs and Glow plug reamer tool with complete instructions for replacing glow plugs and reaming glow plug chambers. Excess carbon build up in the prechamber is the no. 1 reason for premature glow plug failure. We recommend you always ream the holes with changing pencil glow plugs.

INTERNATIONAL ORDERS: Email Us Directly

We are currently shipping our manuals and repairs kits to customers all over the world. Due the the complexity of international shipping rates and constant fluctuation of the US dollar we are not able to allow you to checkout on line.

We are more than happy to help you will your parts needs, even for items we don't have listed on our website. Just email us with a list of items you would like and we will email you back with a total amount including shipping charges. Be sure to include your EXACT address and postal code.

201 190D 602 Monark Diesel Fuel Injector Nozzles w/Heat Shields

For 201 Chassis 5 Cylinder 190D 2.5 Non-Turbo and Turbo Engines 1986 to 1989

Item: DSL-MON128
$112.95
Monark Diesel Fuel Injector Nozzles w/Heat Shields

Fits the following: These nozzles fit ONLY 1986 to 1989 201 Chassis 190D 2.5 Turbo and NON-Turbo. This is the critical inside wear part of the injector that delivers the fuel spray into the cylinder. Replace for better fuel economy, more power, easier starts, and less exhaust smoke.

Engine Oil Pan Pad Heater Installation Kit

Improves cold starts and reduces engine wear on all engines

Item: ELT-COMOPHK
$79.95

Heating your engine oil overnight is one of the best things you can do to prolong the life of your engine. This allows the thinner oil to flow more quickly to the bearings and cylinder walls. It has been shown that 80 to 90 percent of engine wear occurs at cold starts and warm up.

For diesel engine owners 220D 240D 300D 300TD 300CD 300SD this highly efficient heating pad can perform double duty. It can also warm your engine making it easier to start on cold mornings.  Remember heat rises! This is an excellent alternative to traditional coolant block heaters.

123 Chassis Non Turbo Diesel Fuel Lift Pump

Fits All 1977 to 1981 Non turbo 300D 300CD 300TD and 1977 to 1983 240D

Item: DSL-123NTFLP
$159.00
123 Chassis Non Turbo Diesel Fuel Lift Pump

Brand new Bosch Diesel Fuel lift Pump, also known as the fuel pre pump. Located on your injection pump this lift pump is very prone to failure now at the mileage we are seeing on these cars. Comes with a brand new hand primer pump. Fits all non turbo 123 chassis from 1977 to 1981, four and five cylinder diesel engines.

6 Cyl DIY Fuel Injector Rebuild Kit - Save $$

For 300D 300TD 300SD 300SDL 350SD 350SDL

Item: DSL-603DIRK128
$334.75

If you have been reluctant to replace your worn and inefficient Bosch fuel injector nozzles because the job is too difficult or too costly then think again! For approximately the same cost as rebuilt Bosch fuel injectors you can purchase this kit to rebuild them yourself in your garage and get better performance to boot! Works on 1986 to 1991 6 cylinder 300D 300TD 300SD 300SDL 350SD and 350SDL.

4 Cyl 220D 240D 190D DIY Fuel Injector Rebuild Kit - Save $$

Item: DSL-COM616DIRK
$298.50

If you have been reluctant to replace your worn and inefficient Bosch fuel injector nozzles because the job is too difficult or too costly then think again! For approximately the same cost as rebuilt Bosch fuel injectors you can purchase this kit to rebuild them yourself in your garage and get better performance to boot! Works on all 220D 240D 1968 to 1983 and 201 chassis 190D 1984 to 1986.

5 Cylinder 617 300D 300TD 300SD Physical Exam Kit

Check the Health of your Diesel Engine Yourself - Save BIG $$$

Item: DSL-COM5CRX
$179.00

If you are going to buy or have just purchased an older 5 cylinder Mercedes Diesel (1975 to 1985) the first thing you need to do is a good physical exam of the engine. Don't throw money at a car that has a dying engine. It is even better to do this BEFORE you purchase the car to prevent surprises and major pain in your wallet. Check out what happened to us recently on our 1982 300D Project by CLICKING HERE!

4 Cylinder 220D 240D Physical Exam Kit New - Save $40 up the Thousands $$$

Item: DSL-COM4CRX
$175.00

If you are going to buy or have just purchased an older 4 cylinder Mercedes Diesel the first thing you need to do is a good physical exam of the engine. It is even better to do this BEFORE you purchase the car to prevent surprises and pain in your wallet. Check out what happened to us recently in our PROJECT DRIVEWAY restoration project by CLICKING HERE!

Diesel Purge - Per Can

Can only be shipped UPS ground

Item: DSL-COMOCDP
$9.95

PLEASE NOTE: This item can ONLY be shipped UPS Ground. Diesel purge is amazing stuff! It is getting so popular that we have decided to offer it on the website individually, so now you can buy per can. This injection cleaner is run directly through the fuel system in the engine compartment. It is not a fuel tank additive. Does not include instructions or bypass hose. If you want more than one can just change your quantity in the shopping cart.

Lubro Moly Diesel Hi Test fuel additive

Item: DSL-LMDHT
$6.75

WARNING: This item can only be shipped UPS GROUND. So if you are checking out with other items you can only select UPS GROUND. Lubro Moly Diesel hi test fuel additive. Formulated for the new low sulfur diesel fuel. Contains an additive against injection pump and injector wear. Keeps the injection system clean. Provides clean, low smoke combustion. Regular use guarantees lowest exhaust emission levels. If you are running petrol diesel it is a must to be using a fuel additive in the older Mercedes diesels. Sold per can, treats 20 gallons.

1978 to 1985 617 Turbo Diesel Rebuilt Fuel Injector Set

Monark Nozzles Installed and Injectors Pressure Balanced - $ 85 Core Refund

Item: DDSL-COMMRI5T
$365.00

If you want Monark Nozzles that are tuned and balanced and dont want to rebuild them yourself we can sell you a set of FIVE Rebuilt Bosch Fuel Injector Housings with high performance Monark Nozzles installed. Each injector has been bench tested and pressure balanced in our shop. All injectors are set to release pressures between 1900 and 1950 psi. This set of injectors will work in all 300SD 1978 to 1985 and all 123 300D 300CD and 300TD with turbo diesel engines.

Injectors will be shipped with new heat shield washers as shown. No instructions included.

We have abandoned selling factory rebuilt Bosch injectors all together due to the old inefficient nozzle design, poor quality and extreme inaccuracy of their pressure settings.

1975 To 1981 Non Turbo 5 Cyl. Rebuilt Fuel Injector Set

Monark Nozzles Installed and Injectors Pressure Balanced - $ 85 Core Refund

Item: DSL-COMMRI5
$365.00

Since non-turbo injectors are rebuilt to order PLEASE NO EXPEDITED ORDERS. Plan on 3 to 5 days before they can be shipped. If you want Monark Nozzles that are tuned and balanced and don't want to rebuild them yourself we can sell you a set of FIVE Rebuilt Bosch Fuel Injector Housings with high performance Monark Nozzles installed. Each injector has been bench tested and pressure balanced in our shop. All injectors are set to release pressures between 1600 and 1650 psi. This set of injectors will work in all 300D 300CD from 1975 to 1981 and all 300TD from 1978 to 1980, NON Turbo ONLY!.

Injectors will be shipped with new heat shield washers as shown. No instructions included.

220D 240D 190D Non Turbo Rebuilt Fuel Injector Set of 4

Monark Nozzles Installed and Injectors Pressure Balanced - $70 Core Refund

Item: DSL-COM4MFI
$295.00

Since non-turbo injectors are rebuilt to order PLEASE NO EXPEDITED ORDERS. Plan on 3 to 5 days before they can be shipped. If you want Monark Nozzles that are tuned and balanced and don't want to rebuild them yourself we can sell you a set of four Rebuilt Bosch Fuel Injector Housings with these high performance Nozzles installed. Each injector and been bench tested and pressure balanced in our shop. All injectors are set to release pressures between 1600 and 1650 psi. This set of injectors will work in all 115 123 chassis 220D and 240D from 1969 to 1983 as well as 201 190D 2.2 (1984 and 1985).

Injectors will be shipped with new heat shield washers as shown. No instructions included.

Why Does My Diesel Engine Run So Badly?

Manual by Kent Bergsma

Item: SRCLET-WDRB
$12.95
Run_Badly_S.jpg

Running badly means poor performance. It happens sooner or later to EVERY diesel owner. The word "performance" is often used to describe how well a diesel engine runs once started. The principles discussed will cover all Mercedes diesels from the mid 1950s to the mid 1990s. Throughout this manual I will use this word to discuss a number of common problems. How performance is rated can mean different things to different people. In the following pages I will relate diesel performance to the following four criteria:

• How much power does it produce?
• What kind of fuel economy does it deliver?
• How smooth does the engine run?
• How much does the engine smoke?

Variable 30 Pc. Diesel Fuel Injector Pressure Adjustment Shim Washer Kit

For all 615 616 617 601 602 603 engines 1961 to 1995

Item: DSL-COMVSWK
$59.95
variable shim kit

Both myself and our customers are so impressed with the quality and performance of Monark Nozzles I wish I could convince everyone to install them in their Mercedes diesel. To tune them properly you will need a bench pressure tester and these adjustment shims. Be sure to click on the links below to see what else you will need to rebuild and tune your fuel injectors.  Kent Bergsma

5 CYLINDER Turbo Diesel Ultimate Tune Up Kit

For 617 300D 300TD 300SD

Item: DSL-COMTUTK
$249.50

Looking for more performance out of your 5 cylinder 617 turbo diesel engine? Would you like smoother starts, more power and better fuel economy? Who wouldnt? If you have done your basic checks and maintenance ie., valve adjustment, compression test, internal engine timing (timing chain), and all filters and are still not satisfied then it may be time to do our Ultimate turbo diesel Tune-up. Not only does this kit contain the parts and tools you need it also contains complete instructions written by Kent Bergsma that will help you during every phase of the tune-up. He even includes (at no additional cost) instructions on the one key adjustment you can make that almost always increases power during acceleration from a stop.

Diesel Fuel Injector Tuning Manual and Top Brass Tool Kit - Combo Special

Item: TUL-COMDICS
$52.95
brass tool kit and manual

Keeping your injectors clean and tuned is one of the best ways you can improve mileage in a diesel. Buy both Kents new manual Diesel Fuel Injector Cleaning and Testing Procedures and his Top Brass Custom Cleaning Tool Kit and save!

The manual covers diesel fuel injector removal, disassembly, cleaning, overhaul and testing. To read more specifics about this manual CLICK HERE.

The injector cleaning tool kit (designed and hand fabricated by Kent Bergsma) includes all the custom brass tools you will need to succesfully clean your own fuel injectors without damaging the critical internal steel surfaces. To read more about Kents tool kit CLICK HERE.

Heavy Duty Monark Ultimate Hand Primer Pump

116 123 126 Chassis from 1977 to 1985

Item: DSL-COMMHDPP
$26.95
Monark metal primer pump

Have you been hoping some day to find the ultimate hand primer pump for your older Mercedes diesel. Well, you have found it. This is the absolute best hand primer pump I have ever seen or used. It is built with a rugged steel housing and steel pump shaft. The only part of it that is aluminum is the round handle. Better than original. It really pumps, doesn't leak, locks down tight and works great with SVO WVO fuels. Made by Monark Diesel in Germany to the highest German standards.

Fits all diesel engines 1977 to 1985 (except 190D 2.2). Comes with installation instructions. If you are looking for the best this is it! You will be extremely happy with the quality. This pump works better than the other pumps available if you are running biodiesel or SVO.

5 Cyl 602 2.5 Monark Diesel Fuel Injector Nozzles w/Heat Shields

For 124 Chassis 300D 2.5 1990 to 1993 and 201 Chassis 190D 2.5 TURBO

Item: DSL-MON176
$122.25
5 cyl Nozzles With Heat Shields 176

Fits the following: 1990-1993 300D 2.5 Turbo 5 Cylinder as well as the rare 1987 190D 2.5 Turbo. This is the critical inside wear part of the injector that delivers the fuel spray into the cylinder. Replace for better fuel economy, more power, easier starts, and less exhaust smoke.

STC 100 Single Tank Vegetable Oil Fuel Conversion Kit - 25% Off Sale

Build-it-yourself and Save! All Components Available Separately

Item: GOK-STC100
$296.25

25% off our regular price of $395. Inventory reduction. We have four kits available at this price. Price if for full kit purchase only.

The STC 100 builders kit is the heart and soul of all our vegetable based fuel conversions. Its key VFM (Veg Fuel Manager) component is central to every kit we offer. You will need to read all the text that follows to fully understand what this kit will do, what it takes to install it, and how you can modify / upgrade it to operate more efficiently in cold weather. This is not like anything your average SVO conversion company sells. It is easy to build and to install, but reading is a prime requirement for understanding how it can work for you in your climate.

DEFINITIONS:

Heavy Duty Carbon Reamer for Pencil Glow Plug Chambers

Item: DSL-COMGLRT
$34.95
New glow plug reamer

For 1978 to 85 300SD 1980 to 93 240D 300D 300TD 300CD 190D 300SDL 350SDL. When was the last time your glow plug chambers were reamed out? Cleaning out your glow plug holes from excess carbon (coke) can increase fuel economy and will extend the life of your glow plugs. This important regular maintenance procedure is commonly neglected and can lead to rough starts, smoke at startup, decreased fuel economy, and engine shake. Higher mileage engines should be reamed every 30,000 miles. Yearly cleaning is a must if you are running WVO / SVO.

Diesel Biodiesel SVO Electric Fuel Boost Pump Kit

No.1 Performance Upgrade for all Diesels

Item: DSE-COMAEBP
$159.00
boost fuel pump kit 7-07

From the improvements (sometimes dramatic) I have seen first hand and heard second hand (from our customers, I can confidently say this is the No.1 performance upgrade for an older Mercedes diesel. Increasing fuel pressure can increase both power and MPG. One of the common reasons for a diesel to produce excess smoke and deliver poor fuel economy is low fuel pressure/flow to the injection pump. This can of course be caused by dirty fuel filters but it can also be caused by a worn mechanical lift pump as well as worn components inside the injection pump itself. When fuel pressure is low it can actually delay the release timing of your fuel injectors - thus causing incomplete fuel burn - leading to excess smoke and poor mileage.